I was very happy to see you have updated Reus on GOG to 2.4.0.18 a few days ago. However, after downloading and installing the new version, the game won't start anymore. There's a short black screen and then it crashes to desktop, with no error message or anything. The errorReport.txt file in the game directory contains the following:

thanks for reply. Yes, it's the download link from the GOG game tab: Reus 1.4 (GOG-18) 400 MB English/OS:Windows, file name is setup_reus_2.4.0.18.exe with a size of 400 MB (420.367.752 Bytes).
And yes, there is a SpaceTech.Font.dll in the game's main directory with a size of 522 KB (534.528 Bytes).

I installed the older version (setup_reus_2.3.0.17.exe, still had the old installer on my drive) to a different directory and the SpaceTech.Font.dll from this version is only 511 KB (523.264 Bytes). This old version still starts and runs without any problems.

But that gave me the idea to replace the SpaceTech.Font.dll from the new version with the one from the old version - and now the game starts without crashing! Loading an autosave seems to work fine as well. No long term experience, though.

So the error probably has something to do with the changes made to SpaceTech.Font.dll...? Could using the old file cause any problems when playing the game?

I seem to be getting the same error. Any chance someone could post the older 'working' version of the file?
File properties of my SpaceTech.Font.dll: Size: 534,528 bytes, 536,576 bytes on disk.

Version: 1.4
Thread: Main

System.IO.FileNotFoundException: Could not load file or assembly 'SpaceTech.Font.dll' or one of its dependencies. The specified module could not be found.
File name: 'SpaceTech.Font.dll'
at Reus.IntroScreen.LoadContent()
at Microsoft.Xna.Framework.DrawableGameComponent.Initialize()
at Reus.Application.Initialize()
at Microsoft.Xna.Framework.Game.RunGame(Boolean useBlockingRun)
at Reus.Program.ActualMain()
at Reus.Program.Main(String[] args)